3. Erythrocyte (RBC) Stacking allows for passage through narrow blood vessels

4. Leukocyte (WBC) Have a nucleus Fight disease Neutrophils Eosinophils Basophils Monocytes/Macrophage Lymphocyte

5. Granulocyte  This is a cell that shows granules (spots) after staining Neutrophils Eosinophils Basophils

6. WBC Granulocyte: Neutrophil

7. WBC Granulocyte: Eosinophil Appears darker or more red than neutrophils due to larger granules

8. WBC Granulocyte: Basophil

9. Agranulocyte  This is a cell without granules Monocytes /Macrophages Lymphocytes

10. WBC Agranulocyte: Monocyte (Macrophage) Nucleus can appear as several different shapes - Remember: No granules make cytoplasm much lighter than granulated WBC

11. WBC Agranulocyte: Lymphocyte Relatively similar size as RBC Very little cytoplasm visible due to size of nucleus

12. Platelets (Thrombocytes) Platelets can appear in clusters or singular

13. Comparison of all cells together Platelet Erythrocyte Eosinophil Neutrophil Basophil Lymphocyte Monocyte

14. Hematocrit – Packed cell volume (PCV) Percentage of erythrocytes in the blood

15. Differential White Blood Cell Count (DIFF)  A test where the first 100 WBCs are categorized according to type.  This number can then be compared to normal % to determine type of illness. WBC DIFF

16. Tallquist hemoglobin test Measures the amount of hemoglobin in the blood to help determine anemia

17. Blood Typing

18. Antigens Located on the erythrocytes Determines blood type Antigen Antigens No Antigens

19. Antibodies Identifies a specific antigen located on the erythrocytes

20. Agglutination  Clumping that occurs when antibodies join to antigens

21. ABO system

22. Rh antigen